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Finding the Fourth Proportional to 45.08, 67.33 and 41.72

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Solution

The fourth proportional to 45.08, 67.33 and 41.72 is: 62.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.08 : 67.33 = 41.72 : x
  2. Step 2: Convert to fraction form
    45.08/67.33 = 41.72/x
  3. Step 3: Cross multiply
    45.08x = 67.33 × 41.72
  4. Step 4: Simplify right side
    45.08x = 2,809.01
  5. Step 5: Solve for x
    x = 2,809.01/45.08
  6. Step 6: Final answer
    x = 62.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.